mtd: rawnand: fsmc: Stop using chip->read_buf()

chip->read_buf is left unassigned since commit 4da712e70294 ("mtd: nand:
fsmc: use ->exec_op()"), leading to a NULL pointer dereference when it's
called from fsmc_read_page_hwecc(). Fix that by using the appropriate
helper to read data out of the NAND.

Fixes: 4da712e70294 ("mtd: nand: fsmc: use ->exec_op()")
Cc: <stable@vger.kernel.org>
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>

diff --git a/drivers/mtd/nand/raw/fsmc_nand.c b/drivers/mtd/nand/raw/fsmc_nand.c
index 527bebc7e6c94f4902220e478284ccb173cedc1f..59524d181bfe7e709fa966300d64e03a77a698fc 100644 (file)
--- a/drivers/mtd/nand/raw/fsmc_nand.c
+++ b/drivers/mtd/nand/raw/fsmc_nand.c
@@ -741,7 +741,7 @@ static int fsmc_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
        for (i = 0, s = 0; s < eccsteps; s++, i += eccbytes, p += eccsize) {
                nand_read_page_op(chip, page, s * eccsize, NULL, 0);
                chip->ecc.hwctl(mtd, NAND_ECC_READ);
-               chip->read_buf(mtd, p, eccsize);
+               nand_read_data_op(chip, p, eccsize, false);
 
                for (j = 0; j < eccbytes;) {
                        struct mtd_oob_region oobregion;